read my sig for car. i am currently using a stock 91 SI ECU and its been working fine. my friend gave me a ZC ECU to use but i havent hooked it up yet. i know it will work but i just want to get everyones opinion on which ECU would be better for my application. the ZC ECU was originally for an auto but was coverted to a manual.

 

I'd stick with the Si one. I think the ZC one will run too rich for the motor.

 

tough call. zc will let your rev higher before you get fuel kill. however valve trains are different so it may not be a good idea to do so. the ecu running rich is nothing that cant be worked out w/ an afc. stock ecus run rich as it is. dunno, if you have some sort of fuel management system i wouldnt worry about the fuel problem.